[英]Why is my application keeps crashing?
我正在使用下面的代碼構建一個浮動的Android應用程序。 但是該應用一直崩潰,我也不知道為什么。 有人可以告訴我問題是什么嗎?
public class FloatingApp extends Service {
private WindowManager windowManager;
private View chatHead;
@Override
public IBinder onBind(Intent intent) {
// TODO Auto-generated method stub
return null;
}
@Override
public void onCreate() {
super.onCreate();
windowManager = (WindowManager) getSystemService(WINDOW_SERVICE);
LayoutInflater inflater = (LayoutInflater) getSystemService(LAYOUT_INFLATER_SERVICE);
chatHead = inflater.inflate(R.layout.page, null, false);
final WindowManager.LayoutParams params = new WindowManager.LayoutParams(
WindowManager.LayoutParams.WRAP_CONTENT,
WindowManager.LayoutParams.WRAP_CONTENT,
WindowManager.LayoutParams.TYPE_PHONE,
WindowManager.LayoutParams.FLAG_NOT_FOCUSABLE,
PixelFormat.TRANSLUCENT);
params.gravity = Gravity.TOP | Gravity.LEFT;
params.x = 0;
params.y = 100;
windowManager.addView(chatHead, params);
try {
chatHead.setOnTouchListener(new View.OnTouchListener() {
private WindowManager.LayoutParams paramsF = params;
private int initialX;
private int initialY;
private float initialTouchX;
private float initialTouchY;
@Override public boolean onTouch(View v, MotionEvent event) {
switch (event.getAction()) {
case MotionEvent.ACTION_DOWN:
// Get current time in nano seconds.
initialX = paramsF.x;
initialY = paramsF.y;
initialTouchX = event.getRawX();
initialTouchY = event.getRawY();
break;
case MotionEvent.ACTION_UP:
break;
case MotionEvent.ACTION_MOVE:
paramsF.x = initialX + (int) (event.getRawX() - initialTouchX);
paramsF.y = initialY + (int) (event.getRawY() - initialTouchY);
windowManager.updateViewLayout(chatHead, paramsF);
break;
}
return false;
}
});
} catch (Exception e) {
// TODO: handle exception
}
}
@Override
public void onDestroy() {
super.onDestroy();
if (chatHead != null) windowManager.removeView(chatHead);
}
}
順便說一句,沒有錯誤。 我編輯了一些以前用於浮動圖像的代碼,將其更改為在窗口管理器中顯示布局。
從LogCat:
06-28 04:13:39.145:D / AndroidRuntime(2377):關閉VM 06-28 04:13:39.149:W / dalvikvm(2377):threadid = 1:線程退出且未捕獲異常(group = 0xa4b8c648)06 -28 04:13:39.297:E / AndroidRuntime(2377):致命例外:主要06-28 04:13:39.297:E / AndroidRuntime(2377):java.lang.IllegalStateException:無法執行活動06-的方法28 04:13:39.297:E / AndroidRuntime(2377):at android.view.View $ 1.onClick(View.java:3633)06-28 04:13:39.297:E / AndroidRuntime(2377):at android.view .View.performClick(View.java:4240)06-28 04:13:39.297:E / AndroidRuntime(2377):at android.view.View $ PerformClick.run(View.java:17721)06-28 04:13 :39.297:E / AndroidRuntime(2377):在android.os.Handler.handleCallback(Handler.java:730)06-28 04:13:39.297:E / AndroidRuntime(2377):在android.os.Handler.dispatchMessage( Handler.java:92)06-28 04:13:39.297:E / AndroidRuntime(2377):位於android.os.Looper.loop(Looper.java:137)06-28 04:13:39.297:E / AndroidRuntime( 2377):位於android.app.ActivityThread.main (ActivityThread.java:5103)06-28 04:13:39.297:E / AndroidRuntime(2377):at java.lang.reflect.Method.invokeNative(Native Method)06-28 04:13:39.297:E / AndroidRuntime( 2377):在java.lang.reflect.Method.invoke(Method.java:525)06-28 04:13:39.297:E / AndroidRuntime(2377):在com.android.internal.os.ZygoteInit $ MethodAndArgsCaller.run (ZygoteInit.java:737)06-28 04:13:39.297:E / AndroidRuntime(2377):在com.android.internal.os.ZygoteInit.main(ZygoteInit.java:553)06-28 04:13:39.297 :E / AndroidRuntime(2377):在dalvik.system.NativeStart.main(本機方法)06-28 04:13:39.297:E / AndroidRuntime(2377):由以下原因引起:java.lang.reflect.InvocationTargetException 06-28 04 :13:39.297:E / AndroidRuntime(2377):在java.lang.reflect.Method.invokeNative(本機方法)06-28 04:13:39.297:E / AndroidRuntime(2377):在java.lang.reflect.Method .invoke(Method.java:525)06-28 04:13:39.297:E / AndroidRuntime(2377):在android.view.View $ 1.onClick(View.java:3628)06-28 04:13:39.297: E / AndroidRuntime(2377):...還有11個06-28 0 4:13:39.297:E / AndroidRuntime(2377):原因:android.content.ActivityNotFoundException:無法找到明確的活動類{com.firsttry / com.firsttry.MainActivity2}; 您是否在AndroidManifest.xml中聲明了此活動? 06-28 04:13:39.297:E / AndroidRuntime(2377):在android.app.Instrumentation.checkStartActivityResult(Instrumentation.java:1628)06-28 04:13:39.297:E / AndroidRuntime(2377):在Android。 app.Instrumentation.execStartActivity(Instrumentation.java:1424)06-28 04:13:39.297:E / AndroidRuntime(2377):at android.app.Activity.startActivityForResult(Activity.java:3390)06-28 04:13: 39.297:E / AndroidRuntime(2377):位於android.app.Activity.startActivityForResult(Activity.java:3351)06-28 04:13:39.297:E / AndroidRuntime(2377):位於android.app.Activity.startActivity(Activity .java:3587)06-28 04:13:39.297:E / AndroidRuntime(2377):位於android.app.Activity.startActivity(Activity.java:3555)06-28 04:13:39.297:E / AndroidRuntime(2377 ):在com.firsttry.opening.moveto3(opening.java:37)06-28 04:13:39.297:E / AndroidRuntime(2377):... 14更多06-28 04:13:46.337:I / Process (2377):正在發送信號。 PID:2377 SIG:9
“您是否在AndroidManifest.xml中聲明了此活動?”
請仔細看這行
原因:android.content.ActivityNotFoundException:無法找到顯式的活動類{com.firsttry / com.firsttry.MainActivity2}; 您是否在AndroidManifest.xml中聲明了此活動?
它表示您尚未在清單文件中聲明活動
您需要在清單的application標簽內聲明Activity
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